As someone who studied physics at UIUC (America) and Lund University (Sweden) I would give you this short life advice:
Myself and my classmates had almost all read the book The Elegant Universe by Brian Green, and basically all of us entered with the goal of doing theory and it highly motivated us. After some time in the university and only some of us finishing graduate Quantum Mechanics and even fewer with solid grades we became a bit disenchanted with the idea. Flash forward 6 years and our pathways split between teaching high school, Ph.Ds, unemployment, startups, and engineering.
The capacity to think critically at a highly logical level gives your future really amazing possibilites, but if I could give my younger self some advice it would be to #1 do what I did "learn for the sake of learning" but also to "learn for the sake of creating."
Too many brilliant people get out of college and don't "get anything done" and really struggle because they study without application. Apply apply apply, practice solving problems not just the concepts! If you like also learn to make things. Its amazing fun to see the machine turn on and you are making quantum properties in some rare material and its real, its not on paper, its a new transistor you fabricated, or to make a program that calculates terabytes of data in milliseconds.
I have also read "why do you care what other people think" and many other physics novels both hardcore theory and popscience. I believe this is true: virtue and the study of discipline will do you more good so learn it first, because the road is hard. Go read the meditations.
Theres my 2 bits, good luck!